[PATCH 02/11] thermal: add irq-mode configuration for trip point

@@ -289,6 +289,20 @@ static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip,
 	return 0;
 }
 
+static int
+of_thermal_get_trip_irq_mode(struct thermal_zone_device *tz, int trip,
+			     bool *mode)
+{
+	struct __thermal_zone *data = tz->devdata;
+
+	if (trip >= data->ntrips || trip < 0)
+		return -EDOM;
+
+	*mode = data->trips[trip].irq_mode;
+
+	return 0;
+}
+
 static int of_thermal_get_trip_temp(struct thermal_zone_device *tz, int trip,
 				    int *temp)
 {

@@ -371,6 +385,7 @@ static struct thermal_zone_device_ops of_thermal_ops = {
 	.set_mode = of_thermal_set_mode,
 
 	.get_trip_type = of_thermal_get_trip_type,
+	.get_trip_irq_mode = of_thermal_get_trip_irq_mode,
 	.get_trip_temp = of_thermal_get_trip_temp,
 	.set_trip_temp = of_thermal_set_trip_temp,
 	.get_trip_hyst = of_thermal_get_trip_hyst,

@@ -779,6 +794,8 @@ static int thermal_of_populate_trip(struct device_node *np,
 		return ret;
 	}
 
+	trip->irq_mode = of_property_read_bool(np, "irq-mode");
+
 	/* Required for cooling map matching */
 	trip->np = np;
 	of_node_get(np);

@@ -404,6 +404,7 @@ static void handle_critical_trips(struct thermal_zone_device *tz,
 static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
 {
 	enum thermal_trip_type type;
+	bool irq_mode = false;
 
 	/* Ignore disabled trip points */
 	if (test_bit(trip, &tz->trips_disabled))

@@ -417,9 +418,14 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
 		handle_non_critical_trips(tz, trip);
 	/*
 	 * Alright, we handled this trip successfully.
-	 * So, start monitoring again.
+	 * So, start monitoring in polling mode if
+	 * trip is not using irq HW support.
 	 */
-	monitor_thermal_zone(tz);
+	if (tz->ops->get_trip_irq_mode)
+		tz->ops->get_trip_irq_mode(tz, trip, &irq_mode);
+
+	if (!irq_mode)
+		monitor_thermal_zone(tz);
 }
 
 static void update_temperature(struct thermal_zone_device *tz)

@@ -103,6 +103,7 @@ struct thermal_zone_device_ops {
 		enum thermal_device_mode);
 	int (*get_trip_type) (struct thermal_zone_device *, int,
 		enum thermal_trip_type *);
+	int (*get_trip_irq_mode) (struct thermal_zone_device *, int, bool *);
 	int (*get_trip_temp) (struct thermal_zone_device *, int, int *);
 	int (*set_trip_temp) (struct thermal_zone_device *, int, int);
 	int (*get_trip_hyst) (struct thermal_zone_device *, int, int *);

@@ -196,6 +197,7 @@ struct thermal_zone_device {
 	struct thermal_attr *trip_temp_attrs;
 	struct thermal_attr *trip_type_attrs;
 	struct thermal_attr *trip_hyst_attrs;
+	struct thermal_attr *trip_irq_mode_attrs;
 	void *devdata;
 	int trips;
 	unsigned long trips_disabled;	/* bitmap for disabled trips */

@@ -364,6 +366,8 @@ struct thermal_zone_of_device_ops {
  * @temperature: temperature value in miliCelsius
  * @hysteresis: relative hysteresis in miliCelsius
  * @type: trip point type
+ * @irq_mode: to not use polling in framework set support of HW irq (which will
+ *	      be triggered when temperature reaches this level).
  */
 
 struct thermal_trip {

@@ -371,6 +375,7 @@ struct thermal_trip {
 	int temperature;
 	int hysteresis;
 	enum thermal_trip_type type;
+	bool irq_mode;
 };
 
 /* Function declarations */